October Term 2024 · Docket 23-753

Can EPA set flexible goals instead of specific discharge limits?

San Francisco argues EPA must set specific discharge limits. EPA argues it can set flexible goals.

Official caption
San Francisco v. EPA
Latest argument session
Latest official Court activity
Latest verified event
Decided
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Verified source milestones

  1. — An official oral-argument transcript was verified.
  2. — An official oral-argument transcript was verified.
  3. — An official Court opinion was verified.

The arguments, in order

This case may have been argued more than once. Each entry below uses that session's official transcript. Later arguments do not erase earlier ones.

  1. Argument 1 ·

    What happened at the argument

    Ms. Steeley argued EPA must translate water quality goals into specific discharge limits.

    Ms. Steeley stated the city needs clear limits to ensure compliance.

    Mr. Liu argued the Court previously rejected San Francisco's narrow reading.

    Mr. Liu stated the statutory text supports both specific and flexible limits.

    Read the official transcript for this argument · Official argument details

    Sources used for this argument breakdown

A citizen's guide to the whole case

What this case is about

The dispute centers on how the Clean Water Act defines effluent limitations. San Francisco claims the law requires specific numeric limits. EPA claims the law allows flexible performance goals.

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How the case got here

The Supreme Court heard oral argument in this case on October 16, 2024.

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What each side wants

San Francisco wants specific, measurable discharge limits in its permits.

EPA wants to use flexible goals that allow dischargers to choose methods.

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What each side says

San Francisco argues Section 301(b)(1)(C) mandates specific effluent limitations.

EPA argues the statute authorizes both specific limits and flexible goals.

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What the justices asked

Justice Kagan asked what the regulation actually does.

Justice Kagan questioned if the statute bans flexible approaches.

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Why it matters

This case defines how regulators enforce water quality standards. It determines whether facilities face fixed numeric caps or flexible performance targets. The outcome shapes compliance costs and environmental protection strategies nationwide.

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What happens next

This article currently covers the argument record. Use the official docket link for later case activity.

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Official Court provenance

Official docket and case history · Official Supreme Court oral-argument detail page

Verified official opinions and orders

Title and summary sources

Revision history

  1. Revision 1 · Post Opinion ·

    Correction: Rewritten to the concise citizen-facing editorial standard.

  2. Revision 2 · Post Opinion ·

    Correction: Migrated to the dated official Court activity contract without model use.

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